Abstract
Soft colloidal interactions in colloidal glasses are modeled using suspensions of multiarm star polymers. Using a preshearing protocol that ensures a reproducible initial state ("rejuvenation" of the system), we report here the evolution of the flow curve from monotonically increasing to one dominated by a stress plateau, demonstrating a corresponding shear-banded state. Phenomenological understanding is provided through a scalar model that describes the free-energy landscape.
Original language | English (US) |
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Article number | 128304 |
Journal | Physical review letters |
Volume | 100 |
Issue number | 12 |
DOIs | |
State | Published - Mar 28 2008 |
Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy